Comparison

Rock Identifier vs Primo Rocks

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rock Identifier

Instantly identify rocks and minerals using your phone's camera. Get detailed information, ask an AI expert questions, and build a personal collection of your finds. Perfect for geology enthusiasts of all levels.

Highlights
  • Instant camera scanning for rock identification
  • Detailed profiles with hardness and value estimates
  • AI chat expert for geology questions
  • Personal collection library with timestamps
  • Confidence scores for identifications
Features
Read full description

Discover the world beneath your feet with Rock Identifier: GeoLens, your personal geology companion. Simply aim your camera at any rock and instantly discover what it is—no more second‑guessing. Key Features - Instant Scanning: Use Rock Identifier: GeoLens’s camera scanner to identify rocks in seconds. - Detailed Profiles: Explore hardness, luster, value estimates and more on the detail page. - AI Chat Expert: Ask questions about formation, rarity or uses and get answers from your built‑in geology expert. - Collection Library: Save every find in your personal collection, complete with timestamps and confidence scores. Whether you’re a hobbyist or a pro, Rock Identifier: GeoLens makes rock identification effortless. Unlock the secrets of every specimen and build your rock library on the go. Download Rock Identifier: GeoLens today and start exploring! Payment & Subscription Information: Payments are deducted from your iTunes account upon confirmation. Subscriptions renew automatically unless canceled in your account settings. Your account will be charged within 24 hours prior to the end of the current subscription period. You can manage your subscriptions and disable auto-renewal in your account settings after purchase. No refunds will be provided for any unused portion of the subscription. Terms of Use: https://www.freeprivacypolicy.com/live/ebd42484-f379-4e59-af07-46dbc2d05979 Privacy Policy: https://www.freeprivacypolicy.com/live/93aae5ea-e352-40d7-b22f-042bcd51f714

About

Primo Rocks

Identify rocks, minerals, and fossils instantly with a photo. Discover their estimated value, origins, and fascinating stories. Build and manage your personal collection of geological finds.

Highlights
  • AI-powered rock identification
  • Estimated market value
  • Detailed physical properties
  • Locality maps
  • Lore and meaning
  • Personal collection building
  • Rock of the Day feature
Features
Read full description

Ever picked up a stone and wondered what it was? Primo Rocks is your pocket geologist. Take one photo and our AI identifies any rock, crystal, mineral, gemstone or fossil in seconds, then tells you its story, its estimated value and where in the world to find more. IDENTIFY ANY ROCK IN SECONDS Point your camera at any stone and get an instant identification with a confidence check, full physical properties and reference photos to compare. KNOW WHAT IT IS WORTH Every identification comes with an estimated market value, so you know if your find is a keeper. EXPLORE A BEAUTIFUL CATALOG Browse gemstones, minerals, rocks and fossils in a rich catalog with warm, story style descriptions written for curious minds. • Locality maps: see where each specimen is found around the world • Mohs hardness: scratch resistance and physical properties at a glance • Lore and meaning: the myths, history and crystal meanings behind every stone • Rock of the Day: a fresh specimen with a new story every morning BUILD YOUR COLLECTION Save your finds into folders, keep a wishlist of stones you want to hunt next and watch your collection grow. PERFECT FOR • Rockhounds and amateur geologists • Crystal lovers curious about meanings • Beachcombers, hikers and families with curious kids • Fossil hunters • Anyone holding a mystery stone right now PRIVACY FIRST No account needed. Your scans and collection stay on your device. Download Primo Rocks and turn every walk into a treasure hunt. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Rock Identifier4 screens
Primo Rocks4 screens

Verdict

The call

The clearest difference is rating: Primo Rocks at 5.0 against Rock Identifier's 4.3. Primo Rocks also leads on update cadence (fortnightly vs every 11 months). Rock Identifier's advantage is ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rock Identifier sells 2 in-app purchases, starting at $5.99 per 7 days and Primo Rocks sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Primo Rocks holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Rock Identifier has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Rock Identifier ships an update every 11 months, Primo Rocks fortnightly. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 6 level
Rock Identifier versus Primo Rocks: the parameters behind the verdict, then further details
ParameterRock IdentifierPrimo Rocks
PriceFreeFree
Rating4.3 (6 ratings)5.0 (1 ratings) — better
Number of ratings6 — better1
Update frequencyEvery 11 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size62 MB23 MB
Age rating4+4+
DeveloperFabulous Apps LLCPrimo Technology Ltd.

In-app purchases

2 purchases

Rock Identifier

Subscriptions2
  • Rock Identifier - Weekly3 Days trial$5.997 Days
  • Rock Identifier - Yearly$29.991 Year
4 purchases

Primo Rocks

Subscriptions4
  • Premium Weekly Limited3 Days trial$3.997 Days
  • Premium Weekly3 Days trial$7.997 Days
  • Premium Yearly Limited3 Days trial$19.991 Year
Show 1 more
  • Premium Yearly3 Days trial$29.991 Year

Questions

Is Rock Identifier free?
Rock Identifier is free to download, with in-app purchases available.
Is Primo Rocks free?
Primo Rocks is free to download, with in-app purchases available.
Which has better reviews, Rock Identifier or Primo Rocks?
Primo Rocks is rated higher. Rock Identifier averages 4.3 out of 5 from 6 ratings, while Primo Rocks averages 5.0 from 1 ratings.
Do Rock Identifier or Primo Rocks have ads?
Neither Rock Identifier nor Primo Rocks shows ads.
Which is updated more often, Rock Identifier or Primo Rocks?
Rock Identifier ships an update every 11 months, and Primo Rocks fortnightly. Most recently, Rock Identifier was updated on October 30, 2026 and Primo Rocks on November 10, 2026.

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